Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '4bb70053e9217e5cf26dcee3db23bd3e5b58093aa72b9de0a735fb80239bc4ed' 
  AND token = 'EaLYsE8zGQi1neE1vQ2Ghv5lwS/8gYCGaDfo7LMa4co=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00046

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}